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Segment, Other Supplemental Information and Concentrations - Schedule of Property and Equipment by Geographic Area (Detail) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Schedule Of Identifiable Assets By Segment [Line Items] |  |
Property and equipment, net | $ 339 | $ 350
United States |  |
Schedule Of Identifiable Assets By Segment [Line Items] |  |
Property and equipment, net | 248 | 261
Americas (excluding United States) |  |
Schedule Of Identifiable Assets By Segment [Line Items] |  |
Property and equipment, net | 18 | 19
EMEA |  |
Schedule Of Identifiable Assets By Segment [Line Items] |  |
Property and equipment, net | 43 | 36
APJ |  |
Schedule Of Identifiable Assets By Segment [Line Items] |  |
Property and equipment, net | $ 30 | $ 34

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- Definition Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 + Details
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